Improvement in lamp-burners



F. S. l'UBiNSON.

Chimney Holder.

No. 76,945. Patented AprilZ, 18.68.v

FIG. l

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FAYETTE S. ROBINSON, OF BOSTON, MASSACHUSETTS.

Letters'latcnt No. 76,945, dated iApril 21, 1868.

IMPROVEMENT TN LAMP-BURNEBS.

TO ALL WHOM IT MAY CONOERN:

Be vit known that I, FAYETTE S. ROBINSON, of the city of Boston, in the county of Suffolk, and State of Massachusetts, have invented a new and improved Burner for Kerosene-Lamps; and T do hereby declare the following to be a full and correct description of the same, reference being had to the accompanying drawings, in which- Figure 1 is a vertical central section of the burnerand chimney, taken transversely across the wick-tube.

Figure 2 is a bottom view of the burner.

Figure 3 is a bottom view of the dclcctor.

Figure 4 isa detail view, showing the mode oi' attaching the deectorto the chimney, and the chimney t0 the baseplate. I

The same part is marked by the same letter wherever it occurs.

The nature of this invention consists in the new modo of supporting the delector by attaching it to the inside of the chimney, of coni'ining the chimney in place by centripetal holders, and of controlling the force of the draught by passing the air to the flame through a series of perforated media, so arranged as to deiect and break up the currents, all as hereinafter more particularly set forth.

To enable others to make and use my improved burner, I will proceed more particularly to describe its con struction and mode of operation, referring to the drawings, on which A marks the screw-cup, B the wick-tube, and C the Wick-elevator, all of the ordinary construction. D is the perforated base-plate with its edge turned down, as shown. E marks an intermediate perforated plate, the holes in which are oblong, and each surmounted by an archedstrip of metal ofthe samejwidth as the hole. This plate is made of a single-pieceof metal struck up in a die. current of air, passing upwards through the holes in E, would be deiiected bythe arched strips,V and take a lateral direction. I contemplate substituting for this plate, in some cases, one or more thicknesses of wire gauze, the object of such interposed plate or perforated media being to deflect and break up the currents of air forming thc draught, so that no sudden change in the force ofthe draught can take place, even when the lampis exposed to wind, thus insuring great steadiness of flame. F marks the upper denic-shaped perforated plate through which the draught passes directly to the ame. v

G, (see figs. 1, 3, and 4,) is the deflcctor, which is attached to the inside of the chimney H, in such a posi tion that, when the chimney is placed on the lamp, the deilector shall be in its proper relationto the tcp of the wick-tube, as represented in iig. 1. On the underside of the deieetor are attached three springs, ddd, reacting outwards, their ends being bentat right angles to forni the three points e e e, as shown in lig. 3. These points,

when the detlector is placed in its proper position in the chimney H, spring into grooves or recesses cut on the inside of the chimney to receive them, as shown in g. 4.

H, gs. 1 and 4, is the chimney, which may be of any form not inconsistent with the attachment to it of the deilector. It has a flange or 1ip,f, around its bottom edge, which rests upon the base-plate D, and is held in place by the holders M, operated by the springs N, in the manner hereinafter described.

The mechanism for operating the ccntripetal holders Mis clearly illustrated in figs. 2 and 4. These holders are of the shape shown in fig. 4. They slide on the bottom of the hase-plate D, being held ina place by slots in the edge of that plate through which they project, and by pins, g,passing up through slots in the body of plate D. Studs t', on the lower side of the holders, serve for the attachment of the spiral springs N NN, whichtend to draw back the holders M -towards the centre of the base-plate, and cause themto hold the chimney ilrmly and centre it correctly. The holders M are driven outwards, so as to release thev chimney by the action of the sliding bar J, and the levers K and L. These levers have their fulcra on thepins be, and are attached, at one end, to the bar J, a pin projecting from said bar Iliassingthrough a slot in the end of each lever. The opposite end of each lever is in contact Vwith a stud, z', on the bottom of -one of the sliding holders M. A thumb-piece on the outer end of bar J affords the means of pressing it inwards to operate the levers and throw out the holders. The springs N counteract the levers K L, and draw in the holders when the pressure on bar J' is relieved.

The advantages which I claim for this mode of construction are, security ofthe chimney, steaidiness of light, and convenience in cleaning, trimming, and lighting,

Claims.

Having thus fully described my invention, what I claim, eind desire to secureby Letters Pat-ent, is

1. In combination with the dcector G, the spring-points e, for the purpose of supporting tltc deector by entering grooves or recesses in the chimney prepared to receive them, as described.

2. Conning the chimney and centring it by means of' ccntripetnl holders, constructed and operating as set forth.

3. The combination and arrangement of the slide J, levers KL, sliding holders M, and springs N,'in tbe manner and for the purpose specified.

l The above specification of my said invention signed and witnessed et Boston, this 23d day of January, A. D. 1868. l

FAYETTE S. ROBINSON.

Witnesses:

WILLIAM C. CLEVELAND, CEAS. F. STANSBURY. 

